Combination latex and tape applicator for rugs



NOV. 27, 1951 Q MoBRlDE ET AL 2,576,622

COMBINATION LATEX AND TAPE APPLTCATOR FOR RUGS Filed Oct. 26, 1949 Patented Nov. 27, l1951 COMBINATION LATEX AND TAPE APPLICATOR Fon Rues` Charles F. Mclride and lvor'n G. Kreis, Sturgis, Mich.

Application October 26, 1949, Serial N;'123,691'

This invention relates to a latex applicator and more particularly to a device which may be attached directly to a latex container and manipu lated to apply a coating of latex along the edge ofa rug on the back face thereof.

It has been customary inthe past to secure a binding tape to the edge of the rug by means of sewing. This method is time consuming and necessarily expensive. More recently it has been discovered that a binding tape can be applied to a rug very effectively and in much less time than required by the sewing by securing the' tape to the rug with an adhesive, such as latex. The latex is usually applied to the rug as a narrow band' by means of a brush or the like and the tape is subsequently applied either manually or by means of a deviceffsuch as disclosed in our cci-pending application, Serial No. 92,854, iiled May 12, 1949.

When latex is employed for the purpose of securing a binding tape along the edge of the rug.` it is essential to apply latex as a uniform coating on the back face of the rug as well as along the cut edge of the rug. The application o flatex to the cut edge of the rug isl necessary for firmly securing the bindingvtape around the raw edge of the rug and thereby prevent unraveling, Although this' latter method of securing a toda rug in much lessftime and with muchV less effort than required by the conventional brush-v ing method.

More specifically. the invention contemplates a device which is' adapted to be attached directly toa latexcontainerand pushed along the edge oi' the rugvto applyv a uniform coating of latex on the back face ofV the'rug, as Well as along the cutedge of the rug. l

A further object of the invention isto provide a device for applyinglatex to a rugA which can be attached to a binding tape applicator, such as isr shown in the aforementioned co-pending application, ,so that the latex and the binding tape can be. applied to the rug as avsingle operation.

In the drawings:

Figure 1 is a side elevation,-partly in section, off the latex applicator shownattached to a latex container and positioned on a rug.-

i claims. (el. iai-1.66'

Figure 2 isA ai vertical sectional view through the latex applicator and container shown in Figure 1.

Figure 8 is a sectional view along lines 3--3 in Figure 2M'. p

Figurey 4' is a horizontal sectional View along lines 44 in Figure 2'. Y

Figure 5 is a sideelevation of the Alatex appli'- cator 'mounted on-a bindingtape applying device.

Referring to the drawingathe latex applicator, generally designated I0, comprises-a bracket II on which" is mounted ay roller I2. Bracket II is of inverted U-shapeand comprises a pair of vertically depending legs or side walls I4 and I6 connected at their upper ends" by' a" central web portion Iii.` Roller I2 is mountedI between legs I4 and I6' on an axis perpendicular to the plane of legsVv I4 and II and so that the end faces of thev roller are adjacent the inner faces of legs I4 and I 6a -A't a point directly above roller I2 web portion I8' is pro-vided with a depending' cup member 22; Cup 22 may' be formedrv integrally with web I8 or asa separatey member whichv is secured to web I8 as" by braz'ing-o'r'f the like; The bottom wallv 24 of cupzz is perforatedy as' at 26, preferably along a'. line extending transversely across' legs' I4 and I6 and directly above pin 20. Aslide member 28` is provided-for opening and" closingV perforations 2t;y Slide Zaiis- 'fitted oir the inner face of bottom wall24 andha's projections 30at each'endthereof v which' are arranged to' protrude through: diaf-' metric'ally opposed slots32 formed in-cup22. At'

Where the cornersn of flag 3'4 abut against theI side wall of cup 22,1 apertures'v 26'l andv 3Iiar`e in registration;

Cup' 222 is; dimensionedsuchl as"l to receive the pouring-:spout 38 of' axconventional' metal`- pint or quart container 42' in' which' latex' is usually sold.V Accordingly spring fingers 40- are struck: out from each ofA thel legs I4; and IS- soga-sf'to engage the sidewalls offcontainer 42. Arsimilar spring-'finger' 44l is provided at one end ofA web I8 for engaging anfendfwall 'of-thecontainer.` Y Y As is best shown in: Figure` 3,-legs 'llt` and' I6" are of unequal lengthandare provided with substantiafllly straightlower edges 45 andf4`6;-respec.i tively.V Lower edge 45 orlegK |14 is formed with" an inwardly extending flange 48 which is spaced below the lower side of roller I2 a distance substantially equal to the thickness of the backing material 50 o-f the rug 52 on which the latex is to be applied. Edge 46 of leg I6 is spaced slightly above the lower end of roller I2 so that when the device is arranged on the back face of a rug and pushed along the'- edge of the rug with a slight downward pressure, edge 46 rides over the back face of the rug and cooperates with leg I4 to form a trough in which the latex is deposited, as will be hereinafter described. The lower edges of legs I4 and I6, it will be noted, provide runners for slidably guiding the device along the edge of the rug.

A rug binding, when properly applied, extends around the cut edge of the rug so,` as to prevent unraveling of the backing materialv and it is In Figure 5, we have shown the latex applicator attached directly on a binding tape applicator, such as is described in the above-mentioned co-pending application. The binding tape applicator comprises a base 56 which supports a roll of binding tape 58, the tape extending downwardly through a guide 6I at the front end of base 56 and along a guide plate 60 on the lower face of base 56. The arrangement is such that when base 56 is positioned on a rug backing with guide plate 65 engaging the edge of the rug to which an adhesive has been applied, base 5'6 may be pushed forwardly to unreel the tape 58 from the roll and automatically secure it to the rug.

In our co-pending application, we have shown means at the front end of base 56 for applying therefore essential that latex be appliedto this i' cut edge so that the binding tape subsequently applied will adhere-firmly to thecut edge. In the device illustrated, latex is permitted to flow along and into the cut edge of backing material 50 by means of a trough 54 formed on leg I4 adjacent roller -I2. Trough 54 is preferably formed as a depression onthe inner face of leg I4 and extends from a point above the'lower side of roller I2 downwardly to flange 48. Trough 54 is preferably of crescentshape so as to follow the periphery of roller I2 with its opposite ends 55 and 51 terminating at points on opposite sides of pin above the lower end of the roller.

When it is desired to apply latex to the back` face of a rug, the cap is removed from the container 42 and the device is attached to the container with cup 22 inserted over the pouring spout 38 and with the spring fingers 40 and 44 engaging the walls of the container.v The entire assembly is then inverted and positioned on the back face of the rug with flange 48 hooked beneaththe edge of the rug as is -illustrated in Figure 3. Slide 28 is then actuated to bring apertures 36 into registry with apertures26 to permit the latex to flow from the container onto the upper surface of roller I2. When the latex begins to ow, a slight downward and forward pressure is exerted on the container Yso that as it is pushed along,.roller I2 Aengages and rolls over the back surface of the rug.' The surfacerof the roller is roughened, as by. knurling, .to insure a positive rolling movement. It will be noted that roller I2 is thus rotated and thereby applies latexvto the rug just Aahead of the roller.'

This is true whether the container is pushed either forwardly or rearwardly, that is, either to the right or to the leftrespectively, as viewed in Figure 2. The latex dripping on the roller will therefore accumulate in the angle formed between the lower surface of the roller and the surface of the backing material just ahead of the roller, as at 59. This accumulation of latex, it will be noted, extends at one end to the end 55 of trough 54 and the latex therefore ows into trough 54 and downwardly around the trough into the cut edge of the rug. The device is pushed along. the rug with the lower edge of wall I4 engaging the cut edge of the rug and thus serving as a guide and insuring penetration of the latex into the cut edge of the rug.

After the latex is applied as described, the binding-tape` is applied to theedge of the rug. The tape can .be applied directly to the latexed portion of the. rug or,-if desired, the tape itself may also be given an application of latex prior to securing it to the rug. Y

latex to the tape. We have discovered that a more satisfactory binding is produced if the latex is applied to therug, rather than the tape. Accordingly, the latex applicator I0 is arrangedto be secured to the front end of base 56 by one or more screws 62 which pass through a pair of ears 64 at one end of bracket II. With an arrangement such as is shown in Figure 5, the latex and the binding tape can be applied-.to the rug simultaneously, that is by a single operation. As base 56 is pushed forwardly along the edge of the rug,` a narrow band of latex is applied to the rug by roller I2 and the tape 58 is subsequently ap,- plied to the latexed portion of the rug. We have found that by using a quick vsetting latex and by pushing the device along the edge of the rug at a speed which renders the .manual operation convenient, the spacing of roller I2 andvguide plate 60 is such that the latex appliedY by the roller has set to the desired degree before the tape 'is applied from the roll to producea firmv bond between the rug backing and the tape.

It will thus be seen that we have provided a simply constructed latex applicator which enables the application of latex toa rug inA a vrapid manner and with very little ydiincultyl The applicator is further designed so as to insure a thorough saturation of the cut edge of the'rug with latex so that the binding tape subsequently-' applied will adhere firmly and prevent unraveling. A further feature of the invention resides in the provision of an applicator which is capable of being attached directly to a latex container which thereby avoids the necessity of pouring', the latex from the container in which it is sold into a special container from which it is dispensed. y

It Will also be noted that the combined latex and tape applicator enables both the latex andf the tape to be applied to the rug in asingle operation. Y

We claim: y

l. A device for applying a liquid adhesive to the back and edge surfaces of a'rug comprising a bracket having a pair of spaced apart depend-'- ing legs, a roller mounted between said legs onl an axis extending transversely across said-legs, one of said legs being longer than the other, saidV longer leg projecting downwardly below the peripheral surface of said roller atV the lower side' of the roller and having an outwardly extending depression on the inner face thereof which forms a trough adjacent one end of the roller;

which extends from a point above to a point below the peripheral surface of vsaid roller at the lower side of the roller, and means on said bracket for directing liquid adhesive to the peripheral surface of said roller, whereby when said bracket is pushed over the back faceof a rug with the lower edge o f said longer leg pressed against the Verdeel eide esige 0f the rug, a p0rtion of the adhesive applied to the back face of said rug by said roller will owhthrough said trough and into said vertical side edge of the rug.

y2. A device for applying `a liquid `adhesive to the back and edge surfaces of a rug xcomprising a bracket ,having a pair ofy spaced-apart depending legs, a roller mounted between said legs on an .axis extending transversely across ,sadjlegs one of said legs being longer'than'the other, said longer leg projecting downwardly below the peripheral surface of said roller at the lower side of the roller and having an outwardly extending depression on the inner face thereof which forms a trough adjacent one end of the roller which extends from a point above to a point below the peripheral surface of said roller at the lower side of the roller, means on said bracket for directing liquid adhesive to the peripheral surface of said roller, whereby when said bracket is pushed over the back face of a rug with the lower edge of said longer leg pushed against the vertical side edge of the rug, a portion of the adhesive applied to the back face of said rug by said roller will flow through said trough and into the vertical side edge of the rug, and means on said bracket for attaching said bracket to the upper end of a liquid adhesive container of the type having a pouring spout at its upper end, said adhesive applying means on said bracket cooperating with the pouring spout of said container to direct a stream of adhesive to the peripheral surface of said roller when the container is inverted.

3. A device for applying latex to the back and edge surfaces of a rug comprising a bracket having a pair of spaced apart depending legs, the bottom edges of said legs extending longitudinally of said bracket and forming a pair of runners for slidably guiding said bracket on the back face of a rug adjacent an edge thereof, one of said legs being shorter than the other, a roller supported between said legs for rolling movement on a horizontal axis extending transversely of said legs, said longer leg extending downwardly beyond said roller and adjacent one end of the roller whereby said bracket can be positioned on the back face of a rug with the roller resting on said back and with the lower end of said longer leg extending downwardly and overlapping the vertical side edge of the rug, means for applying latex to said roller, and means on said longer leg adjacent said roller forming a trough for directing latex applied to the back face of the rug by said roller in a path downwardly toward the lower edge of said longer leg on the inner side thereof whereby a portion of the latex applied to the rug is permitted to flow through said trough means and into the vertical side edge of the rug.

4. The combination set forth in claim 3 including means on said bracket for attaching the bracket to a conventional container for latex of the type having a pouring spout at its upper end. said latex applying means comprising means on said bracket engageable with said pouring spout when the bracket is attached to said container for directing a stream of latex to said roller when the container is inverted.

5. The combination set forth in claimA wherein said last-mentioned means comprises a cup member on said bracket adapted to receive said pouring spout when the bracket is attached to the container, said .cup member fhavingpassges therein for discharging latex from .said .container to `said `roller when the-.container is inverted.

6. "The combination set forth in Iclaim 3 wherein said trough Vforming means comprises .an .outwardly .extending .depression on the inner face of said longer leg adjacent .the lower .end of said roller, said depression extending from a .point below `to a point lalcove the peripheralsurface of the roller at the lower side of the roller.

i7'. T-he combination set forth in claim 6 where.,- inv-said depression extends longitudinally of said 'longerleg between points positioned onopposite sides of the axis of said roller and above the lower end of the roller.

8. A device for applying latex to the back and edge surfaces of a rug comprising a bracket of inverted U-shape having a pair of depending side walls, the lower edges of which form runners for slidably guiding the bracket over the back face of a rug along an edge thereof, a roller mounted between said side walls for rotation on an axis generally perpendicular to said side walls and with its opposite ends adjacent the inner faces of said side walls, one of said side walls extending downwardly to substantially the peripheral surface of the roller on the lower side thereof, the other side wall depending downwardly beyond the peripheral surface of the roller at the lower side thereof whereby the bracket can be positioned on the back face of a rug with the roller frictionally engaging said back face and with the lower edge of said last-mentioned side wall overlapping and contacting the vertical side edge of the rug, said last-mentioned wall having a trough formed on the inner face thereof adjacent the corresponding end of said roller and extending from below upwardly to at least the level of the peripheral surface on the bottom side of the roller and means on said bracket for directing a stream of latex to the peripheral surface of said roller on the upper side thereof.

9. rlhe combination set forth in claim 8 wherein said trough extends longitudinally of said side wall between points positioned on opposite sides of the axis of rotation of the roller and beyond the periphery of the roller.

10. In combination, a base member having means for mounting a roll of binding tape thereon, guide means on said base member for directing the tape from said roll downwardly and along the bottom face of said base so that said tape is unreeled from said roll when said base is pushed over the back face of the rug with the tape disposed between the bottom face of said base and the back face of the rug, a support member secured to the front end or" said base, a roller on said support member mounted for rolling movement on an axis extending transversely of said base and parallel to the bottom face thereof, said roller being positioned on said support to contact the back face of a rug when said base is pushed over said back face of the rug, a source of latex, and means on said support for directing said latex as a stream from said source to said roller, said latex being in such condition and said roller being positioned in advance of said base a distance such that the latex has set up sufficiently before being engaged by said tape as to bond said tape securely to the back face of said rug when said base member is pushed over said back face manually at a moderate rate of speed.

11. The combination set forth in claim 10 including a side wall on said support member ex 7; tendingodownwardly below the peripheral surface of said roller at the lower side thereof, said side Wall being disposed perpendicular to the axis of the roller and adjacent one end thereof, said side bythe latex deposited on said rug by said roller is permitted to flow through said trough andv into the-vertical side edge of the rug.

CHARLES F. MCBRIDE. HOMER G. KREPS.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Hoyos Mar. 21, 1933 

1. A DEVICE FOR APPLYING A LIQUID ADHESIVE TO THE BACK AND EDGE SURFACES OF A RUG COMPRISING A BRACKET HAVING A PAIR OF SPACED APART DEPENDING LEGS, A ROLLER MOUNTED BETWEEN SAID LEGS ON AN AXIS EXTENDING TRANSVERSELY ACROSS SAID LEGS, ONE OF SAID LEGS BEING LONGER THAN THE OTHER, SAID LONGER LEG PROJECTING DOWNWARDLY BELOW THE PERIPHERAL SURFACE OF SAID ROLLER AT THE LOWER SIDE OF THE ROLLER AND HAVING AN OUTWARDLY EXTENDING DEPRESSION ON THE INNER FACE THEREOF WHICH FORMS A TROUGH ADJACENT ONE END OF THE ROLLER WHICH EXTENDS FROM A POINT ABOVE TO A POINT BE- 